Leadership training is one of the hardest categories of course to evaluate, because the outcome — becoming a better manager — is genuinely difficult to measure, which makes it easy for low-substance, purely motivational content to pass as training.
A warning sign: no specific, practiceable skills
If a course's content is mostly inspirational framing (mindset, vision, "great leaders do X") without concrete, practiceable techniques — how to structure a difficult feedback conversation, how to run an effective one-on-one, how to delegate without micromanaging — it's unlikely to change your actual behavior as a manager, however engaging it is to watch.
What good leadership training actually looks like
The strongest courses focus on specific, repeatable frameworks for common management situations: giving feedback, running meetings, handling underperformance, managing conflict between team members. These are skills you can practice and get concretely better at, unlike "developing your leadership presence."
The role of real practice
No course substitutes for actually managing people and reflecting on what worked. The most useful courses are ones you take while actively managing a team, so you can apply a technique the same week you learn it — course content taken with no team to practice on tends to fade quickly.
How to evaluate before buying
Look at the course's actual syllabus or module list, not just its marketing description — if you can't identify concrete, specific skills you'll practice, treat the reviews and instructor credentials with extra scrutiny before paying.
Courses mentioned in this post
Coursera
Foundations of Account Management
Coursera · MOOC / Non-credit
Coursera
Nursing Leadership
Coursera · MOOC / Non-credit
Warrior Leadership
Udemy · MOOC / Non-credit
Project Management for Beginners: Plan, Execute, and Succeed
Udemy · MOOC / Non-credit